牛头不对马嘴

Explanation: Metaphor or two mismatched irrelevant answers. 　　Usage: The main predicate; as object, attribute; containing derogatory 　　Source: Ming Feng Meng, "the magistrate Luo Shan Su Jingshitongyan together again": "Damn it, Grandpa from the name high, Jiangxi, irrelevant!" 　　Examples: The issues raised teacher he did not catch the spirit of the dispersed, the answer was ~. Thesaurus:  That's beside the point., over[answer]wide of the mark, irrelevant to the subject, alien, Wrong of, abracadabra, shoot off one's face, Foreword Do not take their words, be beside the point; farfetched answer or reasoning, never talk about anything serious, to talk at random (often devoid of truth), Ghost Talk, babble, speak thoughtlessly or casually nonsense, nag; say over and over again; constantly repeat, babble, whine, fuss, talk about sth, often in a grumbling or argumentative way, mutter, complaint, sue; accuse, complain irritably, whine, bitch, mourn, deplore, sorrow, chat, gossip, meander, rapid talk, talk quickly or glibly, ramble, have a soft spot for sb., confess, chat, chat, sth, turn sb. round one's finger, yack, toot Burble Said a solemn feast, yammer, fable Antonym Group:  tanzhu, tanli, write and bring out important points from a mass of facts as one who plucks a pearl from the black dragon, tanlizhu, come to business (=get down to business), gossip Hugh said,, gossip understate